CC1310: Encryption with minimum possible number of bytes

Ali Awan75

Part Number: CC1310

Hi forum!

I want to encrypt a data packet with variable length less than 12 bytes. Zero padding to make the length 16 bytes is not an option since my radio packet has a fixed length of 13 bytes. Strength of encryption may be compromised a little but my radio scheme cannot be compromised.

Is it possible to achieve the above on CC1310?

MD5,SHA2, AES ECB,AES CCM? Please share all possible solutions.

Best Regards

Ali

over 5 years ago

0 Siri over 5 years ago

TI__Guru* 86091 points

The block size is 128 bits, so this is the minimum you can operate on.

Siri

0 Ali Awan75 over 5 years ago in reply to Siri

Expert 1740 points

Hi siri!

Thank you for the reply.

I have found a solution to my problem by using the 16 byte wide block ciphering functions in cipher feedback mode to eliminate the requirement of my data block being at least 16 byte wide or the necessity to pad dummy bytes.

Best Regards

Ali

Sub-1 GHz

Sub-1 GHz forum

CC1310: Encryption with minimum possible number of bytes